US3788041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic precipitator for high temperature operation
Assignee: GAYLORD IND
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Filing: 1972-09-13
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Granted: 1974-01-29
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Expires: 1992-09-13
Abstract
Abstract The precipitator has a series of flat vertical plates which are elongated in a horizontal direction. To prevent buckling of the plates from horizontal expansion when heated, the plates are fixedly mounted in their central portions and allowed to float on end supports so that the ends of the plates may expand freely in opposite directions away from their centers. The end supports comprise rods equipped with necked spacers which maintain uniform spacing of the plates while permitting horizontal movements on the rods during heating and cooling.
Inventors
- 👤 A Gaylord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:48
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/86; Y; Y02; Y02A; Y02A50/00; Y02A50/20; Y02A50/2351; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
41 words
An electrostatic precipitator comprising a group of metal plateS, means fixedly mounting central portions of said plates in spaced parallel relation, and means supporting marginal portions of the plates for expansion and contraction movements away from and toward said central portions.
Claim 2
Dependent Claim
41 words
An electrostatic precipitator comprising a group of metal plateS, means fixedly mounting central portions of said plates in spaced parallel relation, and means supporting marginal portions of the plates for expansion and contraction movements away from and toward said central portions.
Claim 3
Dependent Claim
27 words
A precipitator as defined in claim 1, said plates being of elongated rectangular shape and said marginal supporting means being disposed at opposite ends of the plates.
Claim 4
Dependent Claim
118 words
A precipitator as defined in claim 1, said central mounting means comprising a rod extending through said plates, spacers on said rod between said plates, and means on said rod clamping said plates and spacers together; said marginal supporting means comprising rods extending through said plates, spacers on said rods between said plates, necks on said spacers of slightly greater length than the thickness of the plates, said necks extending through openings in said plates and bearing against adjacent spacers on said rods, said openings being larger than said necks, and means on said rods clamping said necked spacers together end to end while permitting freedom of movement of said plates on said neck portions of said spacers.
Claim 5
Dependent Claim
13 words
A precipitator as defined in claim 3, all of said spacers being metal.
Claim 6
Dependent Claim
143 words
A precipitator as defined in claim 3, said plates comprising a first set of plates for energization at one potential, a second set of plates for energization at a different potential, the plates of said two sets being alternately disposed, said spacers on said central mounting rod clamping said first set of plates and extending through large openings in said second set of plates, and said necked spacers on said marginal supporting rods extending through large openings in said second set of plates; a second central mounting rod having spacers clamping said second set of plates and extending through large openings in said first set of plates; and additional marginal supporting rods having necked spacers supporting said second set of plates and extending through large openings in said first set of plates, whereby said two sets of plates are insulated from each other.
Claim 7
Dependent Claim
38 words
A precipitator as defined in claim 1, said plates being disposed in vertical positions, and a series of vertical guide vanes under the lower edges of said plates for directing an upward current of air between said plates.
Claim 8
Dependent Claim
22 words
A precipitator as defined in claim 6 including a pair of ionizing wire supports extending along opposite ends of said guide vanes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |